1. Department of Pathology; Regional Medical Laboratory; Tulsa OK, USA
2. Department of Pathology and Laboratory Medicine, Rhode Island Hospital; Brown University; Providence USA
3. Department of Pathology and Laboratory Medicine, Mount Sinai Hospital; New York NY USA
4. Leiden University Medical Center; Leiden the Netherlands
5. Department of Pathology and Laboratory Medicine, Mayo Clinic; Rochester MN USA
6. Department of Pathology, Immunology and Pediatrics, Texas Children's Hospital/Baylor College of Medicine; Houston TX USA
7. Department of Pathology, Cleveland Clinic Hospitals; Cleveland OH USA
8. Department of Pathology and Translational Molecular Pathology; The University of Texas MD Anderson Cancer Center; Houston TX USA